The author writes in a friendly manner. She explains everything, starting with the difference between her conversational writing style in this book and the academic writing style used in college.
I don't like to bore you because the author never does. But in case you would like to know what's included, she covers: word choice, sentences, paragraphs, punctuation, grammar, structure and form, revision, the final product, and even submitting and communicating with professors.
As an English professor herself, she knows her stuff. But in addition to that, she knows how to present it in ways that are clear, positive, and actually enjoyable.